— I can’t get through to the general manager’s office.—The line is busy. Someone ________ the telephone.
#76155
A
must have used
B
could use
C
could have used
D
must be using
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You _________ to the meeting this afternoon if you have something important to do . 
#76135
A
needn’t to come
B
don’t need come
C
don’t need coming
D
needn’t come
 -_________ we go at 7.30 ? -What about __________ it a little earlier ?
#76034
A
Shall ,making
B
Shall , to make
C
Will , making
D
Shall, make
—I didn’t tell him the news.—Oh, you ought _______.
#63528
A
to   
B
not to
C
not to have  
D
to have